<!-- this displays some built-in Emoji -->
<p>FYI emoji work just fine, simply encode them as hex strings. For
example, &#x1F341; (&amp;#x1F341;) correctly
displays a maple leaf. Even double-character emoji like
&#x1F1F0;&#x1F1F7; (&amp;#x1F1F0; &amp;#x1F1F7;) display
correctly.</p>